Pen



FIG. 1 is a front left perspective view with cap of a pen showing our new design;

FIG. 2 is a front view with cap thereof;

FIG. 3 is a rear view with cap thereof;

FIG. 4 is a left side view with cap thereof;

FIG. 5 is a right side view with cap thereof;

FIG. 6 is a top view with cap thereof;

FIG. 7 is a bottom view with cap thereof;

FIG. 8 is a front left perspective view without cap thereof;

FIG. 9 is a front view without cap thereof;

FIG. 10 is a rear view without cap thereof;

FIG. 11 is a left side view without cap thereof;

FIG. 12 is a right side view without cap thereof;

FIG. 13 is a top view without cap thereof; and,

FIG. 14 is a bottom view without cap thereof. 

CLAIM The ornamental design for a pen, as shown. 